[OZAPRS] Can anyone explain this please

Sun Jul 20 11:53:10 EST 2008

VK2XJG-5 is also javAPRSSrvr, and its configured not to beacon anything, as
it is a STANDBY I-Gate for Sydney and should not actually even be acting as
an Rx Only gate at the moment.  

Its' javAPRSSrvr all the way to and including the APRS-IS CORE, so if this
is an issue introduced by aprsd it could be coming from VK2ZEN-5 (which IS
aprsd)

The only thing I'm not sure about is where aprs.fi connects into APRS-IS -
potentially aprsd at that end as well.

Geoff  VK2XJG

-----Original Message-----
From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
Behalf Of Phillip
Sent: Sunday, July 20, 2008 10:31 AM
To: Australian APRS Users
Subject: RE: [OZAPRS] Can anyone explain this please

Hi Gerard

                 Are you using Mic-E beacons if yes can you turn it off.

When this happens and there is trashed Mic-E there appears to be NO DUPE 

checking there has been a fair amount of this around the world 

and the only fix is to track it down.

http://f5vag.eu/php/bad_mice_stats.php

The 500kms Rate is what you see when Mic-E beacons get trashed by 

1/ a version of aprsd trashing Mic-e  find the Igate that posted it see what
they are running 

   I couldn't find any data on findu for VK2XJG-5

http://www.jfindu.net/lastreports.aspx?call=VK2XJG-5

Nor could I find any current data on aprs.fi for VK2XJG-5

http://aprs.fi/?call=vk2xjg-5&mt=m&z=11&timerange=86400

I see that VK2XJG is a javaparssvr so that counts out aprsd

what is vk2xjg-5 ???

2/ RF getting into your GPS     add clamp on ferrit's to GPS lead

3/ Bad earthing                       check your earthing

4/ Reset your D710

73 Phillip

ZL2TZE

-------Original Message-------

From: Geoff

Date: 07/20/08 11:44:37

To: 'Australian APRS Users'

Subject: RE: [OZAPRS] Can anyone explain this please

Which part in particular ???

I'll break it down a little - what you are seeing is the data from the

APRS-IS (Internet) as seen at aprs.fi, so there are a few additional fields

that you don't see on RF.

2008-07-19 06:15:40 UTC: VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR,VK2ZEN-5:'m8

l j/]"4!}146.775MHzKenwood TM-D710= [Location changes too fast (>500 km/h)]

  2008-07-19 06:15:40 UTC:

VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR,VK2XJG-5:'m8l

j/]"4!}146.775MHzKenwood TM-D710= [Rate limited (< 5 sec)]

These two frames are the same packet - one was received through VK2ZEN-5

IGate via VK2RAG-1 digi, and the other was received via VK2XJG-5 IGate via

VK2RAG-1.  (The second should not have popped up as my IGate should be

OFFLINE - I'll need to check that).   The qAR part is a header used only on

the Internet stream.

I believe the "Rate limited" message is a function of aprs.fi, as it has

received exactly the same message from you within 5 seconds and applied a

throttling to your message.  The "Location changes too fast" I can't

explain.  It could be that your GPS is providing invalid data or your packet

is corrupted somehow giving an apparent shift in location that is

unrealistic - or your car is something that the Stig should take around the

track on Top Gear :-)

Regards,

Geoff  VK2XJG

-----Original Message-----

From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On

Behalf Of JandG

Sent: Saturday, July 19, 2008 8:30 PM

To: Australian APRS Users

Subject: [OZAPRS] Can anyone explain this please

Found this on APRS.fi after a trip to the Central Coast.

Would appreciate an explanation if possible.

2008-07-19 06:15:40 UTC: VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR,VK2ZEN-5:'m8

l j/]"4!}146.775MHzKenwood TM-D710= [Location changes too fast (>500 km/h)]

  2008-07-19 06:15:40 UTC:

VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR,VK2XJG-5:'m8l

j/]"4!}146.775MHzKenwood TM-D710= [Rate limited (< 5 sec)]

  2008-07-19 06:19:11 UTC:

VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR,VK2XJG-5:`O8l#Hj/]"4'}146.775MHzKenwo

od TM-D710= [Location changes too fast (>500 km/h)]

  2008-07-19 06:19:13 UTC: VK2JNG-9>SSR1W7,VK2RTZ-1*,WIDE2-1,qAR
VK2ZEN-5:`O8

l#Hj/]"4'}146.775MHzKenwood TM-D710=

  2008-07-19 06:21:25 UTC: VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR
VK2ZEN-5:`O8

l#1j/]"4'}146.775MHzKenwood TM-D710=

  2008-07-19 06:21:25 UTC:

VK2JNG-9>SSR1W7,VK2RAG-1*,WIDE2-1,qAR,VK2XJG-5:`O8l#1j/]"4'}146.775MHzKenwo

od TM-D710= [Rate limited (< 5 sec)]

Thanks,

Gerard

VK2JNG

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